Using a complete scientific top quality management program, great high-quality and fantastic religion, we win great track record and occupied this area for Paper Cone, 10"Speaker Surround , Horn Edge Speaker Repair Kit , 11 Inch Speaker Cone ,8"Foam Surround Repair Kit . Our Lab now is "National Lab of diesel engine turbo technology " , and we own a professional R&D team and complete testing facility. The product will supply to all over the world, such as Europe, America, Australia,Greenland, Algeria,Bulgaria, South Africa.With good quality, reasonable price and sincere service, we enjoy a good reputation. Products are exported to South America, Australia, Southeast Asia and so on. Warmly welcome customers at home and abroad to cooperate with us for the brilliant future.